Gas-holder tank.



No. 807,033. PATENTED DEU..12, 1905.

A. KLUNNE.

GAS HOLDER TANK.

APPLICATION FILED JAN. 6. 1905.

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Z I B Z L A I F B B i i 7 c I is ,i ""2 d Y L- WITNESSES I NyE/V TOR UNITED STATES PATENT OFFICE.

AUGUST KLGNNE, OF DORTM UN D, GERMANY.

GAS-HOLDER TANK.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Application filed January 6, 1905. Serial No. 239.933.

declare the following to be a full, clear, and

exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i

The present invention relates to annular tanks for gas-holders and the like.

Annular tanks for gas-holders and the like are well known, in which the horizontal plane roof is formed as a vessel by extending the inner wall above the roof, and, moreover, in the case of other well-known tanks the roof, which has the shape of a spherical concave, carries a special vessel at its highest central portion. The object of these arrangements is to carry a water load on the roof. The water load in the first case balances, through suitable means for transmitting force, the pressure exerted by the water on the inner wall of the annular tank and is intended, While the annular space and the vessel formed by the roof are being simultaneously filled, to produce the effect that all parts are uniformly subjected to stresses. In the second case the water load serves to prevent permanently an upward bending of the roof due to the lateral water-pressure, the water being first let into the-vessel formed or carried by the roof when the tank is being filled.

The object of the present invention is to provide a roof having a low or depressed central portion. Toward the edge of the roof the water then requires to stand only so high above the roof as is requisite for keeping the roof gas-tight. The depression of the roof can be provided for by giving to the roof theshape of a cone or concave hanging downward or by additionally providing it at its center with a special vessel. In the latter case the roof proper may be level.

The staying or trussing of the load on the roof and of the horizontal water-pressure is effected by means of framework stiflenings or the likefor example, two-jointed or threejointed beams with two abutment-jointswhen the depressed portion of the roof is in the shape of a cone or concave and by means of two-jointed beams that is, two framework or solid plates or the likeconnected with one another by a stiff central ring when a special vessel is provided in the central portion of the roof.

By the employment of girders in the form of framework or the like and the use of several short beams subjected to bending stresses by the horizontal water-pressure and in consequence of the force'exerted by the water load on the roof acting in an opposite direc' tion to the horizontal forces exerted by the water in the annular space of the tank as far as these framework or the like or solid stilfenings are concerned a very great saving in material is effected. On filling the tank water is first let onto the roof, so that during the operation of filling the framework stiffenings are in no part subjected to greater stresses than during full load, which would occur if the roof were not first filled, as in this case the load on the roof would be small in comparison with the horizontal pressure exerted by the water in the annular space of the tank.

Two embodiments of the present invention are represented in the appended drawings, in which Figure '1 is a vertical section through the center of an annular tank constructed in one form, Fig. 2 being a similar view of another constructional form.

In the form illustrated in Fig. l the roof at is formed as a flat cone, the vertex of which is directed downward. The framework or solid stiifenings b, which serve for the support of the roof and the inner wall ,9, are

formed either as two-jointed beams with the abutment-joints c c or as three-jointed beams with the joints 0 c d. 71 is the outer wall,and i the bottom of the annular tank, said bottom resting on the support k. Z is the water filling the inner annular space of the tank and also covering theroof 0.

Referring now to the constructional form shown in Fig. 2, a is the roof proper and in the form here shown is flat and carries in its center a suspended vessel 6. The roof (0 of the tank may, however, be formed in the shape of a cone or concave. The top edge of said vessel may either be on the same level as the upper edge of the roof or the vessel may extend somewhat above the roof in order that it may support the gas bell or holder at its center when it is in its deepest position. In this case the crown of the holder is carried and stiffened .by a framework 6, (indicated by dotted lines in Fig. 2. When such a framework is provided, it is not necessary to arrange a framework under the crown of the holder. In the form shown in Fig. 2 the framework or solid stilfenings Z) or the like are two jointed beams with the abutmentjoints 0 0 and the stiff central ring f.

Having thus described the nature of my said invention and the best means I know of carrying the same into practical effect, I claim 1. A tank for gas-holders and the like, consisting of the combination of an annular tank proper having inner and outer walls, a roof covering the inner space formed by the inner wall of said annular tank, said roof having a depression at its center adapted to contain water, and means for trussing the roof and said inner wall, substantially as and for the purpose set forth.

2. A tank for gas-holders and the like, consisting of the combination of an annular tank proper having inner and outer walls, a roof covering the inner space formed by the inner wall of said annular tank, said roof having in its central portion a suspended vessel adapted to contain water, and means for trussing the roof and said inner wall, substantially as and for the purpose set forth.

3. A tank for gas-holders and the like, consisting of the combination of an annular tank proper having inner and outer walls, a roof covering the inner space formed by the inner Wall of said annular tank, said roof having a depression at its center adapted to contain water, and jointed beams within the inner space surrounded by the inner wall of the annular tank for trussing the roof and said inner Wall, substantially as and for the purpose set forth.

4:. A tank for gas-holders and the like, consisting of the combination of an annular tank AUGUST KLONNE.

Witnesses WILLIAM ESSENWEIN, PETER LIEBER. 

